CVE-2026-21535 (GCVE-0-2026-21535)

Vulnerability from cvelistv5 – Published: 2026-02-19 22:06 – Updated: 2026-02-20 21:52 Exclusively Hosted Service
VLAI?
Title
Microsoft Teams Information Disclosure Vulnerability
Summary
Improper access control in Microsoft Teams allows an unauthorized attacker to disclose information over a network.
Severity ?
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
CWE
  • CWE-284 - Improper Access Control
Assigner
References
Impacted products
Vendor Product Version
Microsoft Microsoft Teams Affected: -
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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